Repair instructions
Check the following:
•
The surface coating of the cylinder is not worn
through, especially in the upper part of the
cylinder.
•
The cylinder is free from score marks and
areas of wear.
•
The piston is free from score marks. Small
scratches can be polished out with fine emery
paper.
•
The piston ring is freely moving in its groove.
(see figure 55)
•
Measure piston ring wear. This should not
e ceed 1 mm. (see figure 56) Use the piston to
push the piston ring for correct alignment.
•
The needle roller bearing is undamaged.
•
The intake manifold is undamaged.
•
That the air hoses and impulse hose are unda-
maged.
•
Pressure test the decompression valve.
46
– English
Fig 55
Fig 56